Bolt Carrier Groups

Manufactured by Defense Industrial Base suppliers to WMDs exacting specifications to provide the best BCG available, these BCGs are specifically engineered for NiB-X nickel boron coating to provide long life, high reliability and easy cleaning and...

Machined from 4140" Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, M16 Style.Features :Nitride CoatingMachined from 4140M16 Style

This 9mm AR Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are coated with EXO...

Phase 5s Mil-spec AR-15 bolt carrier features a heat treated and chrome lined inner with a black phosphate coating. The complete bolt carrier group includes cam pin, firing pin, gas key, and bolt. All bolts are HPT/MPI tested.Features :Black Phosphate...

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and...

This complete bolt-and-carrier group easily drops into a standard mil-spec AR-15 upper, and its ready to shoot. Batch magnetic particle inspected bolt gives long service life. Bolt and carrier feature a matte black phosphate finish that resists heat,...

This 6MM ARC Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6MM ARC. All critical parts are coated with EXO Nickel Boron Technology that provides permanent dry lubricity, extreme...

Rise Armament Bolt Carrier Group, .223/5.56,Product Type: Bolt Carrier Group

This 7.62x39 Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil-spec upper receivers chambered in 7.62x39. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme...

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into  most mil spec M16" M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity" extreme durability and...

Your Bolt Carrier Group is one of the most critical parts of your build. Don't buy an imitation. This is the Spike's Tactical Lightweight BCG with Nickel Boron Coating.Features :Nickel Boron Coating Inside and Out (Bolt, Carrier, and Gas Key)Laser...